baber/WOPTO huggingface dataset:
Patent GB-808778-A (GB)
Title: Improvements in internal-combustion-operated, free-piston gas-generators
Inventor: BEALE EVELYN STEWART LANSDOWNE
IPC: F02C5/08
Filed: 1956-06-19
Abstract: 808,778. Free-piston gas generators. MUNTZ & CO. Ltd., A. June 4, 1957 [June 19, 1956], No. 19005/56. Class 7(1) In an internal-combustion free-piston gas generator a duct connects the scavenge air reservoir directly with the compressor cylinder and a central valve is arranged to open the duct at low power levels and close the duct at higher power levels. As shown (Fig. 1), a duct interconnecting the compressor cylinder 13 with the scavenging reservoir 16 is controlled by a throttle valve 20 controlled by the scavenging air pressure which acts on a piston 21. In a modification, the arrangement is such that when the pressure in the engine case falls below a predetermined value, the throttle valve is opened by a cam fixed to the synchronizing mechanism of the pistons. In another modification, Fig. 3, the throttle valve 20 is controlled by a lever 25 which is acted on by pistons 21 and 32 which in turn are acted upon by pressures derived from the compressor cylinder and the engine case in the manner shown. In a further modification a piston similar to the piston 21 in Fig. 1 is acted upon by fluid pressure supplied by a control device rotated by the driven machine such as a turbine. The fluid pressure may be liquid or air pressure. The fluid pressure supplied by the control device may also be used for other control purposes such as the control of the fuel pump rack. The mechanical couplings used may be replaced by pneumatic or hydraulic couplings, the latter consisting for instance of a driving piston and driven piston connected by an enclosed column of oil. The control valve may be operated mechanically. It may be operated from the synchronizing gear provided to synchronize the movements of the two piston assemblies it may be opened for an equal fraction of the stroke before and after the inner dead point the period of opening being adjusted automatically by a mechanism controlled either directly or through a servo mechanism by the gas delivery pressure or by a control pressure for instance as described in Specification 787,430. Arrangements described in Specification 787,430 may be used with only such modifications as are needed in order to apply the invention. Connection with the compressor cylinder may be made through the cylinder wall near the inner end thereof where the suction valves are located.
Patent GB-289294-A (GB)
Title: Improvements in or relating to combined lighting and ignition generators
IPC: H02K16/00
Filed: 1927-07-18
Abstract: 289,294. Weckerlein, H., and Norris Z³nd-Licht Akt.-Ges. July 18, 1927. Magneto-electric machines; machines with two or more armatures.-In a combined lighting and ignition generator, the lighting unit is arranged behind the U-shaped magnet d of the ignition magneto and is separated therefrom by a non- magnetic. flanged ring b, and the yoke ring a is flattened at the bottom a<1> so as to rest on the upper flattened part t' of the magneto casing. The non-magnetic ring b has a cylindrical part c extending into the arch of the magnet supporting the bearing k of the dynamo armature shaft which is driven by toothed gear from the magneto shaft o. The cylindrical portion c is cut away to accommodate the projecting ends of the field coils q and apertures y<1> permit inspection of the brush gear. The lighting generator is clamped to the magneto by a band v.
Patent GB-315089-A (GB)
Title: A new or improved device for creasing and stretching trousers and the like
IPC: A47G25/70
Filed: 1928-07-02
Abstract: 315,089. Lea, R. H. July 2, 1928. T r o u s e r creasers.- Trouser creasers comprise a pair of triangular frames pivoted to a spring, part of which extends beyond the ends of the frames to facilitate handling the device while inserting it into the trouser leg. The frames a are provided, nearer one end than the other, with a transverse metal stay a<2> to which is pivoted a plate b<3> fixed to one leg of the spring. One arm of the spring has attached thereto a member c having a hook c<3> for engaging the other arm, as shown, to facilitate insertion in the trouser leg. The device can be folded by turning the frames bodily round their pivots till their longest sides are juxtaposed.
Patent GB-706831-A (GB)
Title: Improvements in or relating to heat-transmission processes in which the heat-transmission medium is a fluidised bed of finely divided, solid particles
IPC: B01J8/18
Filed: 1952-07-29
Abstract: 706,831. Heating apparatus; generating steam. NAAMLOOZE VENNOOTSCHAP DE BATAASCHE PETROLEUM MAATSCHAPPIJ. July 29, 1952 [July 31, 1951], No. 19136/52. Classes 64(2) and 123(2) In a heat-transmitting fluidized bed of fine, solid particles through which a main stream of gas is passed 'for the supply or removal of heat, supplementary gas is supplied to the bed at points where the particles are not disturbed by the main gas stream, so that the whole bed is fluidized. A sand bed, fluidized over part of its width by gases from the combustion of fuel oil, and transmitting heat to steam pipes in the bed, is fluidized in the remaining parts by air introduced through pipes disposed in the bed and having perforations in their undersides. The supplementary gas may be preheated by heat-exchange with the flue gases leaving the bed.
Patent GB-651581-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/39
Filed: 1948-07-16
Abstract: 651,581. Sparking plugs. K. L. G. SPARKING PLUGS, Ltd., CARINGTON, C. M., and SHOOBERT, G. W. July 16, 1948, No. 19195. [Class 7(iv)] In a sparking plug having a central electrode 11 confined between an internal shoulder 20, which is in the insulator 10 and situated near the firing point 22, and a seal 21 which is rigid with the wall of the insulator, expansion of the electrode relative to the insulator is permitted by interposing an element, such as a disc, Fig. 3 (not shown), made up of asbestos or mica washers, or by forming a thin walled cavity 14 in the electrode 11 ; a lightly-rolled depression 15 may be provided. The electrode is made of copper or silver with a platinum tip 22 and is sealed by a vitreous filling. A molybdenum wire 12 connects the electrode to the terminal 13. Specification 560, 178 is referred to.
Patent GB-198252-A (GB)
Title: Improvements in connection with internal combustion engines
IPC: F02B75/02
Filed: 1922-07-13
Abstract: 198,252. North British Diesel Engine Works (1922), Ltd., and Maclagan, J. C. M. July 13, 1922. Two-stroke-cycle engines; frames.-In engines having cylinders which reciprocate over fixed combustion heads as described in Specification 173,145, one of the supporting columns A, B for the heads acts as a receiver for compressed air; the inlet manifold E-or manifolds when the engine is double-acting-is in the form of a slipper, which slides on the ported guide H on the column B.
Patent GB-147419-A (GB)
Title: Improvements in or relating to syringes or irrigators
IPC: A61M3/02
Filed: 1920-07-07
Abstract: 147,419. Krohn (nÚe Richter), E. von. May 30, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Syringes and like appliances.- A urethral irrigator or syringe comprises a narrow tube d of metal, ebonite, glass &c. connected at its enlarged end c by a rubber tube b to a rubber ball a or to an irrigator container or the like, and closed at its other end by an enlarged hollow member e. The member e is semipointed and slightly curved, as shown, and its annular base surrounding its junction with the tube d is formed with liquid outlets f which are preferably inclined to the axis of the tube.
Patent GB-1451000-A (GB)
Title: Method of stabilizing dyes and fluorescent brightening agents
IPC: G03C7/392
Filed: 1974-05-02
Abstract: 1451000 Photographic materials EASTMAN KODAK CO 2 May 1974 [7 May 1973] 19319/74 Heading G2C [Also in Division D1B] A dye or fluorescent brightener contained in an organic material, e.g. in a layer of a photographic material such as an imaged colour material, is stabilized against the effects of visible or ultraviolet radiation by adding a stabilizing compound to said material, wherein the dye or brightener has its longest wavelength absorption peak below 590 nm and the stabilizing compound is an azomethine containing the characteristic grouping:- wherein the phenyl group may be substituted or not and where the carbon atom shown may be cyclic, the azomethine having its longest wavelength absorption peak above 530 nm and longer than the longest wavelength absorption peak of the dye or brightener, and the azomethine having a quenching capacity (as defined in the specification) greater than one and a quenching efficiency # o /# greater than one, where # o  is the corrected fading rate of the dye or brightener alone and # its corrected fading rate in the presence of the azomethine. A wide variety of dyes may be stabilized including anthraquinone dyes, azo dyes, azomethine dyes and formazan dyes. The photographic materials comprise silver halide colour materials having a colour coupler from which the image dye to be stabilized is formed on colour development and a second colour coupler which forms the stabilizing azomethine also in the image areas (eg Examples 34 and 39 to 43). Alternatively, the material may contain a single colour coupler from part of which the image dye is formed from one developing agent and from the remainder of which the stabilizer is formed from a different developing agent. In a colour transfer embodiment, the photographic material may comprise a mordanted receiving sheet containing the azomethine stabilizer to which the dye migrates during the dye diffusion transfer process.
Patent GB-404029-A (GB)
Title: Improvements in or relating to thermionic valve apparatus
IPC: H04B1/02
Filed: 1932-07-08
Abstract: 404,029. Valve circuits. EWEN, H. A., Gray Walls, Priest Lane, Shenfield, Essex. July 8, 1932, No. 19384. [Class 40 (v).] Thermionic valves V of high power, such as are used in a transmitter, have their filaments F heated by current obtained from a plurality of generators HG, whose field excitations are obtained from a further generator E1 or E2, and are controlled by separate rheostats CR. A reversing switch RS allows the filament current to be periodically reversed to reduce filament wear, while a rheostat GCR controls all the fields of the generators HG together. The generators HG preferably have falling characteristics, so that the output voltages fall rapidly on short circuit or overload thus avoiding the necessity for fuses.
Patent GB-330417-A (GB)
Title: Improvements in water heaters
IPC: F24H9/18
Filed: 1929-06-24
Abstract: 330,417. Ewart, S., Ewart, J. W., and Ewart & Son, Ltd. June 24, 1929. Geysers. - In a water heater constructed so that the e gas burner can be swung out to either side. the burner is hinged at the point h' to a fitting attached to the revolving top b of the heater by screws m<3> and to the base a at points h<2> or h on opposite sides of the opening s for the burner. A door t attached to the burner can be held on either side by the screw u passing into either socket w or w<1>. The middle part c of the heater is rotatable with respect to the other parts to bring the water delivery spout c' to any required position. The direction of the gas supply pipe 1<SP>2> may be varied by loosening the screws h<4> and 1 that hold the part h<3> of the fitting in position. The water enters through a tube o and funnel q and weighs down the vessel n<2> mounted on a lever n and thus operates a gas supply valve k<1> in the part h<3> by means of a rod l to which is attached a bell dipping in a water seal formed between the concentric tubes h<5> and h<6> ; water is admitted through the branch h<9>. A discharge aperture T empties the vessel n<2> when the water supply is turned off.
Patent GB-1214914-A (GB)
Title: Improvements in or relating to motor-driven miniature apparatus for connection to differing supply voltages
IPC: H02P7/29
Filed: 1968-04-24
Abstract: 1,214,914. Automatic control of motors. BRAUN A.G. April 24, 1968 [April 29, 1967], No.19439/68. Heading G3R. [Also in Division H2] Apparatus such as a shaver or toothbrush is driven by an electric motor 2 adapted to be supplied from direct voltage sources having differing magnitudes, the motor being rated for the lowest value of said voltages. A control device is located in the casing of the apparatus and transmits rated power to the motor despite changes of the supply voltage. In one arrangement, the armature of the motor 2 is shunted by a resistor 6 in series with capacitor 5, and when the voltage across the capacitor increases so that the Zener voltage of diode 8 is exceeded, a voltage is developed across resistor 9 to operate a transistor 10. Transistor 12 then becomes conductive to render the switching transistor 4 non-conductive until the capacitor voltage decreases and the diode 8 is blocked. The motor thus receives a pulsating current, the pulse duration being dependent upon the source voltage. Diode 7 prevents voltage peaks due to the switching operation, and capacitors 14, 15 steepen the slope of the pulsating D.C. supply.
Patent GB-1498414-A (GB)
Title: Road marking composition
IPC: E01F9/04
Filed: 1974-05-03
Abstract: 1498414 Road marking compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 14 April 1975 [3 May 1974] 19446/74 Heading C3P Road marking compositions comprise a resinous or polymeric binder 0À001-10% of which is an olefin/vinyl ester copolymer, the remainder being a petroleum resin or mixture thereof with a plasticising, heat-stable, non- volatile hydrocarbon oil. The compositions may also contain aggregates, ballotini, inorganic fillers and pigments. Examples describe compositions comprising ethylene/vinyl acetate copolymer, petroleum resin, hydrocarbon oil, crushed calcite, ballotini, whiting and titanium dioxide.
Patent GB-394142-A (GB)
Title: Improvements in grinding and polishing facets on rotary bodies
IPC: B24B9/14
Filed: 1932-07-09
Abstract: 394,142. Grinding to produce convex facets. DESENBERG, J., 18, Melchiorstrasse, Dusseldorf, Germany. July 9, 1932, No. 19456. [Class 60.] Revelling lenses, grinding and polishing.-In the production of convex facets on the edges of spectacle lenses, watch glasses or other similar articles the grinding tool is in the form of a rotating hollow shell b, Fig. 1, while the work a performs rotary swinging motions about the centre of curvature of the facet. The smaller instead of the larger face of the work may abut on the tool holder. The spherical surface of the tool is large enough either to contact with the whole surface to be ground or to the largest possible part thereof. In a modification a number of tools for successive operation on the work are arranged with their axes intersecting and in position so that their distance from the intersection is constant. In the modification, shown in Fig. 5, the grinding element has more than one grinding surface so as to be capable of treating different surfaces. In another modification, shown in Fig. 7, one tool b passes into another tool b<2> for operating on a different surface thereto. Specifications 116,397 and 332,245, [both in Class 60, Grinding or abrading &c.], are referred to.
Patent GB-147508-A (GB)
Title: Improvements in tyre building core and chuck
IPC: B29D30/12
Filed: 1920-07-08
Abstract: 147,508. Mattia, P. de, and Mattia, B. de. May 6, 1919, [Convention date]. Moulding wheel tyres.-Relates to collapsable cores as described in Specification 147,509, and consists in the provision, at the end of the fixed core section 4, of a section 16 pivoted to a swivel 18, which section can be swung inwardly and downwardly after withdrawal of the key section 11, to provide for greater inward movement of the pivoted section 14. Fig. 4 shows the core collapsed.
Patent GB-1413304-A (GB)
Title: Electromagnetic pumps
IPC: H02K44/06
Filed: 1972-04-26
Abstract: 1413304 Pumps operating by electromagnetic interaction with fluids UNITED KINGDOM ATOMIC ENERGY AUTHORITY LONDON 12 April 1973 [26 April 1972] 19490/72 Heading H2A An electromagnetic pump, e.g. for pumping liquid sodium in nuclear reactors, comprises an annular flow passage 5 and a three phase helical winding 6 arranged co-axially with the longitudinal axis of the flow passage, the winding being disposed in a three start slot in either one of a core and pump housing disposed on opposite sides of the flow passage, the slot walls and base and the exposed surfaces of the winding all being covered with electrically insulating material, and the regions of the core or housing between different parts of the slot being free of insulation. As shown, the flow passage is bounded by an outer casing 10a and an inner tube 10 which is closed at its lower end. The winding is mounted in a three start slot in iron core 7, the core having helical slits 11 to reduce the flow of eddy currents. In a modification, Fig. 2 (not shown), the tube 10 is omitted and inner and outer iron cores defining the flow passage are each sheathed in stainless steel. Again the winding is mounted in slots in the inner core, but in a modification, Fig. 4 (not shown), the winding is mounted on the outer core. There may be baffles 1a, Fig. 3 (not shown) disposed longitudinally in the flow passage to prevent rotational movement of the sodium in the flow passage.
Patent GB-274898-A (GB)
Title: Improvements in or relating to telephone sub-station circuits and apparatus
IPC: H04M1/08
Filed: 1927-07-22
Abstract: 274,898. La Ville le Roulx, R. L. J. R. de, (Assignees of Conti, J. T. F.). July 22, 1926, [Convention date]. Telephone apparatus. - In an arrangement for preventing unauthorized persons from making calls while permitting incoming calls to be answered, a substation circuit is broken at a gap which is adapted to be bridged on the operation of a relay which responds to the incoming ringing current. A key is provided for rendering the lock-out apparatus ineffective. Fig. 2 shows a substation circuit in which the lockout mechanism is associated with the switchhook. The talking circuit is broken at springs 6. 7 adapted to be bridged by a contact 4 pivoted to a counter-balanced lever 2 having two resting positions. When the substation is rung, a relay 11 inserted in series with the bell S is energized, and tends to attract its pivoted armature 10. On the removal of the receiver 14, the switch-hook L rises and permits the armature 10 to move the lever 2 into its other resting position in which the springs 6, 7 are bridged by contact 4. When the receiver is replaced, a depending pin 1 restores the lever 2 to its non-bridging position. If the receiver is taken off to initiate a call, the circuit remains open, since the lever 2 will remain in its non-bridging position. Switches 12, 13 are provided for rendering the lock-out apparatus ineffective. In the modification shown in Fig. 3, the lock-out apparatus may be located away from the instruments. The relay 15 is provided with two windings, the winding 16 being included in series with the.bell S to cause the armature 19 to bridge the springs 21, 22 on calling and close the talking circuit, in which is inserted the holding winding 17 shunted by a condenser 23. When L is replaced, the armature 19 is returned by a spring 20. Authorized persons are provided with a key with three projections for bridging the points m', m<2>, m<3> and cutting out the lock-out apparatus.
Patent GB-614026-A (GB)
Title: Improvements connected with pianos and the like
IPC: G10D13/08
Filed: 1946-07-01
Abstract: 614,026. Musical instruments with sonorous rods. AIRES, A., and COLLEDGE, T. July 1, 1946, No. 19539. [Class 88 (ii)] A sonorous rod for a piano or the like of the type having a plurality of such rods which are selectively struck by key-operated hammers, and in which each rod is tapered towards one end and is mounted at said end in a block carried by the instrument frame, is provided with an enlarged portion or shoulder between the tapered portion of the rod and the end which is mounted in the block. As shown in Fig. 3, when the rod 2 is screwed into the hole 6 in the supporting block 1, the shoulder 9 abuts against the inner end of the enlarged portion 7 of the hole.
Patent GB-1450522-A (GB)
IPC: G09G3/28
Filed: 1975-05-09
Abstract: 1450522 Matrix displays INTERNATIONAL BUSINESS MACHINES CORP 9 May 1975 [1 July 1974] 19556/75 Heading G5C A gas discharge display discharge is written in a memory panel by a series of pulses of alternating polarity each insufficient to initiate the discharge but which act to accumulate wall charge until the discharge takes place. The pulses are superimposed on sustain pulses and the interval between them is steadily reduced by moving the write pulses from the trailing to leading edges of the sustain pulses (Fig. 4) not shown. The amplitude of the write pulses falls as the number of pulses increases. Pulses are provided by circuitry described in Specification 1,317,663 with an "Exclusive OR" circuit (90) Fig. 1 (not shown) incorporated in each line driver. This changes the signal applied by the driver from either the select or non-select form to the other after the primary ignition pulse to produce the second ignition booster pulse. If several booster pulses are used the drive circuit includes pairs of counters and decoders Fig. 4 (not shown).
Patent GB-184447-A (GB)
Title: Improvements in or relating to variable-speed power transmission gearing
IPC: F16H29/22
Filed: 1922-07-17
Abstract: 184,447. Lavaud, D. S. de. Aug. 9, 1921, [Convention date]. Variable-speed gearing comprising a swash ring 10, Fig. 1, of variable inclination operating through ratchets 23 is rendered automatic as by the use of a spring 19, the gearing being specially suitable for motor-vehicles. An annular revoluble carrier 8 is pivoted upon a trunnion 7<a> upon a spherical part 7 of the driving-shaft 3, and holds in ball bearings 9 the non-revoluble ring 10. Rods 21 with ball ends communicate oscillation to the ratchets 23 which drive a sleeve 27<a>, Fig. 2, continuously in one direction. A double clutch 32 transmits this or reversed rotation to a driven shaft 24. The effect of the resistance is to tend to turn the carrier 8 about its trunnion to a perpendicular position, when the drive stops. This tendency is resisted by the spring 19, which is adjustable and is carried upon an extension 14 of the shaft 3. The spring 19 may be controlled by a pedal. Specification 183,456 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification with the carrier 8 connected to a non-sliding barrel within which the shaft 3 slides as the spring 19 functions to regulate the speed. This subjectmatter does not appear in the Specification as accepted. (For Fig. 2 see next page.)